libraries/zip_extension.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3
   4 /**
   5  * Interface for the zip extension
   6  * @package    phpMyAdmin
   7  * @version    $Id$
   8  */
   9
  10 /**
  11   * Gets zip file contents
  12   *
  13   * @param   string  $file
  14   * @return  array  ($error_message, $file_data); $error_message
  15   *                  is empty if no error
  16   */
  17
  18 function PMA_getZipContents($file)
  19 {
  20     $error_message = '';
  21     $file_data = '';
  22     $zip_handle = zip_open($file);
  23     if (is_resource($zip_handle)) {
  24         $first_zip_entry = zip_read($zip_handle);
  25         if (false === $first_zip_entry) {
  26             $error_message = __('No files found inside ZIP archive!');
  27         } else {
  28             /* Is the the zip really an ODS file? */
  29             $read = zip_entry_read($first_zip_entry);
  30             $ods_mime = 'application/vnd.oasis.opendocument.spreadsheet';
  31             if (!strcmp($ods_mime, $read)) {
  32                 /* Return the correct contents, not just the first entry */
  33                 for ( ; ; ) {
  34                     $entry = zip_read($zip_handle);
  35                     if (is_resource($entry)) {
  36                         if (!strcmp('content.xml', zip_entry_name($entry))) {
  37                             zip_entry_open($zip_handle, $entry, 'r');
  38                             $file_data = zip_entry_read($entry, zip_entry_filesize($entry));
  39                             zip_entry_close($entry);
  40                             break;
  41                         }
  42                     } else {
  43                         /**
  44                          * Either we have reached the end of the zip and still
  45                          * haven't found 'content.xml' or there was a parsing
  46                          * error that we must display
  47                          */
  48                         if ($entry === FALSE) {
  49                             $error_message = __('Error in ZIP archive:') . ' Could not find "content.xml"';
  50                         } else {
  51                             $error_message = __('Error in ZIP archive:') . ' ' . PMA_getZipError($zip_handle);
  52                         }
  53
  54                         break;
  55                     }
  56                 }
  57             } else {
  58                 zip_entry_open($zip_handle, $first_zip_entry, 'r');
  59                 /* File pointer has already been moved, so include what was read above */
  60                 $file_data = $read;
  61                 $file_data .= zip_entry_read($first_zip_entry, zip_entry_filesize($first_zip_entry));
  62                 zip_entry_close($first_zip_entry);
  63             }
  64         }
  65     } else {
  66         $error_message = __('Error in ZIP archive:') . ' ' . PMA_getZipError($zip_handle);
  67     }
  68     zip_close($zip_handle);
  69     return (array('error' => $error_message, 'data' => $file_data));
  70 }
  71
  72 /**
  73   * Gets zip error message
  74   *
  75   * @param   integer  error code
  76   * @return  string  error message
  77  */
  78 function PMA_getZipError($code)
  79 {
  80     // I don't think this needs translation
  81     switch ($code) {
  82         case ZIPARCHIVE::ER_MULTIDISK:
  83             $message = 'Multi-disk zip archives not supported';
  84              break;
  85         case ZIPARCHIVE::ER_READ:
  86             $message = 'Read error';
  87              break;
  88         case ZIPARCHIVE::ER_CRC:
  89             $message = 'CRC error';
  90              break;
  91         case ZIPARCHIVE::ER_NOZIP:
  92             $message = 'Not a zip archive';
  93              break;
  94         case ZIPARCHIVE::ER_INCONS:
  95             $message = 'Zip archive inconsistent';
  96              break;
  97         default:
  98             $message = $code;
  99     }
 100     return $message;
 101 }
 102 ?>